Home / 428.96-592-324.56

Finding the Fourth Proportional to 428.96, 592 and 324.56

Calculator

Solution

The fourth proportional to 428.96, 592 and 324.56 is: 447.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    428.96 : 592 = 324.56 : x
  2. Step 2: Convert to fraction form
    428.96/592 = 324.56/x
  3. Step 3: Cross multiply
    428.96x = 592 × 324.56
  4. Step 4: Simplify right side
    428.96x = 192,139.52
  5. Step 5: Solve for x
    x = 192,139.52/428.96
  6. Step 6: Final answer
    x = 447.92

Related Problems

Find fourth proportional to 214.48, 296 and 162.28
Half scale
Find fourth proportional to 857.92, 1,184 and 649.12
Double scale
Find fourth proportional to 429.96, 593.38 and 325.56
Similar ratio
Find fourth proportional to 643.44, 888 and 486.84
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.